java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:21:36,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:21:36,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:21:36,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:21:36,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:21:36,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:21:36,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:21:36,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:21:36,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:21:36,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:21:36,414 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:21:36,415 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:21:36,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:21:36,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:21:36,421 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:21:36,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:21:36,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:21:36,433 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:21:36,435 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:21:36,437 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:21:36,442 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:21:36,443 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:21:36,447 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:21:36,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:21:36,448 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:21:36,448 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:21:36,449 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:21:36,450 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:21:36,454 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:21:36,455 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:21:36,455 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:21:36,458 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 11:21:36,462 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 11:21:36,493 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:21:36,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:21:36,495 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:21:36,495 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:21:36,495 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:21:36,495 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:21:36,496 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:21:36,496 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:21:36,496 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:21:36,496 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:21:36,497 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:21:36,497 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:21:36,497 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:21:36,498 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:21:36,498 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:21:36,498 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:21:36,498 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:21:36,499 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:21:36,499 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:21:36,499 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:21:36,499 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:21:36,500 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:21:36,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:21:36,501 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:21:36,501 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:21:36,501 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:21:36,501 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:21:36,502 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:21:36,502 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:21:36,502 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:21:36,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:21:36,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:21:36,503 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:21:36,503 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:21:36,503 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:21:36,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:21:36,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:21:36,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:21:36,575 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:21:36,576 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:21:36,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c [2018-09-19 11:21:36,913 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b83d050d5/142114b0323a484fb4bc6fa0bcac7a71/FLAGf3c21599c [2018-09-19 11:21:37,374 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:21:37,376 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label58_true-unreach-call.c [2018-09-19 11:21:37,405 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b83d050d5/142114b0323a484fb4bc6fa0bcac7a71/FLAGf3c21599c [2018-09-19 11:21:37,426 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b83d050d5/142114b0323a484fb4bc6fa0bcac7a71 [2018-09-19 11:21:37,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:21:37,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:21:37,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:21:37,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:21:37,450 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:21:37,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:21:37" (1/1) ... [2018-09-19 11:21:37,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:37, skipping insertion in model container [2018-09-19 11:21:37,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:21:37" (1/1) ... [2018-09-19 11:21:37,468 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:21:38,560 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:21:38,587 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:21:39,022 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:21:39,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39 WrapperNode [2018-09-19 11:21:39,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:21:39,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:21:39,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:21:39,173 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:21:39,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:21:39,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:21:39,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:21:39,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:21:39,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... [2018-09-19 11:21:39,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:21:39,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:21:39,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:21:39,988 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:21:39,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:21:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:21:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:21:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 11:21:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 11:21:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:21:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:21:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:21:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:21:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:21:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:21:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:21:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:21:49,090 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:21:49,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:21:49 BoogieIcfgContainer [2018-09-19 11:21:49,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:21:49,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:21:49,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:21:49,096 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:21:49,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:21:37" (1/3) ... [2018-09-19 11:21:49,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acaa828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:21:49, skipping insertion in model container [2018-09-19 11:21:49,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:21:39" (2/3) ... [2018-09-19 11:21:49,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acaa828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:21:49, skipping insertion in model container [2018-09-19 11:21:49,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:21:49" (3/3) ... [2018-09-19 11:21:49,100 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label58_true-unreach-call.c [2018-09-19 11:21:49,108 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:21:49,117 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:21:49,189 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:21:49,190 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:21:49,190 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:21:49,191 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:21:49,191 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:21:49,191 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:21:49,191 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:21:49,191 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:21:49,193 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:21:49,240 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-19 11:21:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 11:21:49,251 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:21:49,254 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:21:49,255 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:21:49,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1155307225, now seen corresponding path program 1 times [2018-09-19 11:21:49,264 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:21:49,265 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 48 with the following transitions: [2018-09-19 11:21:49,269 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [3000], [3004], [3010], [3014], [3025], [3026], [3027], [3029] [2018-09-19 11:21:49,339 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:21:49,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:21:50,613 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:21:50,615 INFO L272 AbstractInterpreter]: Visited 46 different actions 46 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 11:21:50,637 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:21:51,226 INFO L232 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 80.36% of their original sizes. [2018-09-19 11:21:51,226 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:21:51,556 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:21:51,558 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:21:51,558 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:21:51,559 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:21:51,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:21:51,571 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:21:51,572 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:21:51,575 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 6 states. [2018-09-19 11:22:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:22:08,636 INFO L93 Difference]: Finished difference Result 2253 states and 4323 transitions. [2018-09-19 11:22:08,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:22:08,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-09-19 11:22:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:22:08,677 INFO L225 Difference]: With dead ends: 2253 [2018-09-19 11:22:08,677 INFO L226 Difference]: Without dead ends: 1476 [2018-09-19 11:22:08,691 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:22:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2018-09-19 11:22:08,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1474. [2018-09-19 11:22:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-19 11:22:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2167 transitions. [2018-09-19 11:22:08,849 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2167 transitions. Word has length 47 [2018-09-19 11:22:08,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:22:08,850 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2167 transitions. [2018-09-19 11:22:08,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:22:08,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2167 transitions. [2018-09-19 11:22:08,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-09-19 11:22:08,860 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:22:08,861 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:22:08,861 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:22:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1098624251, now seen corresponding path program 1 times [2018-09-19 11:22:08,862 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:22:08,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-09-19 11:22:08,863 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-09-19 11:22:08,877 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:22:08,877 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:22:20,502 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:22:20,503 INFO L272 AbstractInterpreter]: Visited 194 different actions 381 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:22:20,511 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:22:22,333 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-19 11:22:22,334 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:22:23,042 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:22:23,042 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:22:23,043 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:22:23,043 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:22:23,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:22:23,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:22:23,045 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:22:23,045 INFO L87 Difference]: Start difference. First operand 1474 states and 2167 transitions. Second operand 11 states. [2018-09-19 11:22:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:22:53,159 INFO L93 Difference]: Finished difference Result 3233 states and 5588 transitions. [2018-09-19 11:22:53,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 11:22:53,160 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 234 [2018-09-19 11:22:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:22:53,174 INFO L225 Difference]: With dead ends: 3233 [2018-09-19 11:22:53,175 INFO L226 Difference]: Without dead ends: 2468 [2018-09-19 11:22:53,179 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 241 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-19 11:22:53,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2018-09-19 11:22:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2229. [2018-09-19 11:22:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2229 states. [2018-09-19 11:22:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2942 transitions. [2018-09-19 11:22:53,266 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2942 transitions. Word has length 234 [2018-09-19 11:22:53,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:22:53,270 INFO L480 AbstractCegarLoop]: Abstraction has 2229 states and 2942 transitions. [2018-09-19 11:22:53,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:22:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2942 transitions. [2018-09-19 11:22:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2018-09-19 11:22:53,293 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:22:53,295 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:22:53,296 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:22:53,296 INFO L82 PathProgramCache]: Analyzing trace with hash -845854530, now seen corresponding path program 1 times [2018-09-19 11:22:53,297 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:22:53,297 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 576 with the following transitions: [2018-09-19 11:22:53,300 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 11:22:53,349 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:22:53,349 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:23:24,002 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:23:24,003 INFO L272 AbstractInterpreter]: Visited 535 different actions 1064 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:23:24,032 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:23:26,742 INFO L232 lantSequenceWeakener]: Weakened 573 states. On average, predicates are now at 77.54% of their original sizes. [2018-09-19 11:23:26,742 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:23:27,800 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:23:27,800 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:23:27,800 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-19 11:23:27,800 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:23:27,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-19 11:23:27,802 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-19 11:23:27,802 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-09-19 11:23:27,803 INFO L87 Difference]: Start difference. First operand 2229 states and 2942 transitions. Second operand 21 states. [2018-09-19 11:24:16,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:24:16,284 INFO L93 Difference]: Finished difference Result 3714 states and 5800 transitions. [2018-09-19 11:24:16,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-09-19 11:24:16,293 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 575 [2018-09-19 11:24:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:24:16,311 INFO L225 Difference]: With dead ends: 3714 [2018-09-19 11:24:16,312 INFO L226 Difference]: Without dead ends: 2949 [2018-09-19 11:24:16,316 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 600 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=262, Invalid=1900, Unknown=0, NotChecked=0, Total=2162 [2018-09-19 11:24:16,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2018-09-19 11:24:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2940. [2018-09-19 11:24:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2018-09-19 11:24:16,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3666 transitions. [2018-09-19 11:24:16,391 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3666 transitions. Word has length 575 [2018-09-19 11:24:16,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:24:16,392 INFO L480 AbstractCegarLoop]: Abstraction has 2940 states and 3666 transitions. [2018-09-19 11:24:16,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-19 11:24:16,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3666 transitions. [2018-09-19 11:24:16,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2018-09-19 11:24:16,417 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:24:16,417 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:24:16,418 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:24:16,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1113798300, now seen corresponding path program 1 times [2018-09-19 11:24:16,418 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:24:16,419 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 763 with the following transitions: [2018-09-19 11:24:16,420 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1899], [1901], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-09-19 11:24:16,433 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:24:16,433 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:25:03,298 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:25:03,298 INFO L272 AbstractInterpreter]: Visited 536 different actions 1603 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:25:03,307 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:25:07,201 INFO L232 lantSequenceWeakener]: Weakened 760 states. On average, predicates are now at 77.48% of their original sizes. [2018-09-19 11:25:07,201 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:25:08,206 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:25:08,206 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:25:08,206 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-19 11:25:08,206 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:25:08,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-19 11:25:08,208 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-19 11:25:08,208 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:25:08,209 INFO L87 Difference]: Start difference. First operand 2940 states and 3666 transitions. Second operand 20 states. Received shutdown request... [2018-09-19 11:25:53,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-19 11:25:53,354 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:25:53,360 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:25:53,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:25:53 BoogieIcfgContainer [2018-09-19 11:25:53,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:25:53,362 INFO L168 Benchmark]: Toolchain (without parser) took 255921.88 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.8 GB). Peak memory consumption was 881.2 MB. Max. memory is 7.1 GB. [2018-09-19 11:25:53,363 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:25:53,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1729.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:25:53,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:25:53,365 INFO L168 Benchmark]: Boogie Preprocessor took 655.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 860.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:25:53,366 INFO L168 Benchmark]: RCFGBuilder took 9103.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 499.5 MB). Peak memory consumption was 499.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:25:53,367 INFO L168 Benchmark]: TraceAbstraction took 244268.75 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.5 GB). Peak memory consumption was 394.6 MB. Max. memory is 7.1 GB. [2018-09-19 11:25:53,372 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1729.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 158.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 655.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 860.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9103.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 499.5 MB). Peak memory consumption was 499.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244268.75 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 3.3 GB in the end (delta: -1.5 GB). Peak memory consumption was 394.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 129). Cancelled while BasicCegarLoop was constructing difference of abstraction (2940states) and FLOYD_HOARE automaton (currently 30 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (5267 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 244.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 140.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2807 SDtfs, 11151 SDslu, 3163 SDs, 0 SdLazy, 55383 SolverSat, 3409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 125.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 1666 GetRequests, 1564 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2940occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 90.6s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9972982206091947 AbsIntWeakeningRatio, 0.05947955390334572 AbsIntAvgWeakeningVarsNumRemoved, 909.1350681536555 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 250 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label58_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-25-53-387.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label58_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-25-53-387.csv Completed graceful shutdown